Page 2 - Note
NI 9476 Operating Instructions and Specifications 2 ni.com This doc u ment describes how to u se the National Instr u ments 9476 and incl u des specifications and pin assignments for the NI 9476. Visit ni.com/info and enter rd s oftwarever s ion to determine which software yo u need for the mod u le...
Page 3 - Safety Guidelines; Hot Surface; Safety Guidelines for Hazardous Locations; not; not
© National Instruments Corp. 3 NI 9476 Operating Instructions and Specifications Safety Guidelines Operate the NI 9476 only as described in these operating instr u ctions. Hot Surface This icon denotes that the component may be hot. To u ching this component may res u lt in bodily inj u ry. Safety G...
Page 4 - Special Conditions for Hazardous Locations Use in Europe
NI 9476 Operating Instructions and Specifications 4 ni.com Caution S u bstit u tion of components may impair s u itability for Class I, Division 2. Caution For Zone 2 applications, install the system in an enclos u re rated to at least IP 54 as defined by IEC 60529 and EN 60529. Caution For Zone 2 a...
Page 5 - Special Conditions for Marine Applications
© National Instruments Corp. 5 NI 9476 Operating Instructions and Specifications Special Conditions for Marine Applications Some mod u les are Lloyd’s Register (LR) Type Approved for marine applications. To verify Lloyd’s Register certification, visit ni.com/certification and search for the LR certi...
Page 6 - tp
NI 9476 Operating Instructions and Specifications 6 ni.com Connecting the NI 9476 The NI 9476 has a 37-pin DSUB connector that provides connections for 32 digital o u tp u t channels. Figure 1. NI 9476 Pin Assignments DO16DO17DO18DO19DO20DO21DO22DO23VsupVsupDO24DO25DO26DO27DO28DO29DO30DO31 DO0DO1DO2...
Page 7 - Specifications
© National Instruments Corp. 7 NI 9476 Operating Instructions and Specifications Each channel has a DO pin to which yo u can connect a digital inp u t device. The 32 digital o u tp u t channels are internally referenced to COM. Yo u m u st connect an external power s u pply to the NI 9476. The power...
Page 9 - Increasing Current Drive
© National Instruments Corp. 9 NI 9476 Operating Instructions and Specifications Increasing Current Drive Each channel has a contin u o u s o u tp u t c u rrent of 250 mA. If yo u want to increase the o u tp u t c u rrent to a device, yo u can connect any n u mber of channels together in parallel. F...
Page 10 - Protecting the Module from Flyback Voltages; If the mod
NI 9476 Operating Instructions and Specifications 10 ni.com Protecting the Module from Flyback Voltages If the mod u le is switching an ind u ctive or energy-storing device s u ch as a solenoid, motor, or relay, and the device does not have flyback protection, install an external flyback diode as sh...
Page 11 - Understanding Protected Devices
© National Instruments Corp. 11 NI 9476 Operating Instructions and Specifications I/O Protection The NI 9476 is protected against overc u rrent, inr u sh, and short-circ u it conditions in accordance with IEC 1131-2. Understanding Protected Devices Each channel on the NI 9476 has circ u itry that pr...
Page 12 - Sleep Mode
NI 9476 Operating Instructions and Specifications 12 ni.com Sleep Mode This mod u le s u pports a low-power sleep mode. S u pport for sleep mode at the system level depends on the chassis that the mod u le is pl u gged into. Refer to the chassis man u al for information abo u t s u pport for sleep m...
Page 13 - Output Characteristics
© National Instruments Corp. 13 NI 9476 Operating Instructions and Specifications Specifications The following specifications are typical for the range – 40 to 70 °C u nless otherwise noted. All voltages are relative to COM u nless otherwise noted. Output Characteristics N u mber of channels ..........
Page 15 - Power Requirements
© National Instruments Corp. 15 NI 9476 Operating Instructions and Specifications MTBF ............................................... 1,091,425 ho u rs at 25 °C; Bellcore Iss u e 2, Method 1, Case 3, Limited Part Stress Method Note Contact NI for Bellcore MTBF specifications at other temperat u res...
Page 16 - Safety; Maximum Voltage; MAINS
NI 9476 Operating Instructions and Specifications 16 ni.com Safety Maximum Voltage 1 Connect only voltages that are within the following limits. V s u p -to-COM..................................... 36 VDC, Meas u rement Category 1 Meas u rement Category I is for meas u rements performed on circ u it...
Page 17 - Isolation Voltages; Safety Standards
© National Instruments Corp. 17 NI 9476 Operating Instructions and Specifications Isolation Voltages Channel-to-channel ........................... No isolation between channels Channel-to-earth gro u nd Contin u o u s ................................. 60 VDC, Meas u rement Category I Withstand........
Page 18 - Hazardous Locations; Environmental
NI 9476 Operating Instructions and Specifications 18 ni.com Hazardous Locations U.S. (UL) .......................................... Class I, Division 2, Gro u ps A, B, C, D, T4; Class I, Zone 2,AEx nC IIC T4 Canada (C-UL) ................................. Class I, Division 2, Gro u ps A, B, C, D, T...
Page 19 - Shock and Vibration
© National Instruments Corp. 19 NI 9476 Operating Instructions and Specifications Operating h u midity (IEC 60068-2-56).............................. 10 to 90% RH, noncondensing Storage h u midity (IEC 60068-2-56).............................. 5 to 95% RH, noncondensing Maxim u m altit u de............
Page 20 - Electromagnetic Compatibility
NI 9476 Operating Instructions and Specifications 20 ni.com Electromagnetic Compatibility This prod u ct is designed to meet the req u irements of the following standards of EMC for electrical eq u ipment for meas u rement, control, and laboratory u se: • EN 61326 EMC req u irements; Ind u strial Im...
Page 21 - CE Compliance; Environmental Management
© National Instruments Corp. 21 NI 9476 Operating Instructions and Specifications CE Compliance This prod u ct meets the essential req u irements of applicable E u ropean directives, as amended for CE markings, as follows: • 2006/95/EC; Low-Voltage Directive (safety) • 2004/108/EC; Electromagnetic C...
Page 22 - NI and the; Waste Electrical and Electronic Equipment (WEEE); EU Customers; must; RoHS; National Instruments; about China RoHS compliance, go to
NI 9476 Operating Instructions and Specifications 22 ni.com For additional environmental information, refer to the NI and the Environment Web page at ni.com/environment . This page contains the environmental reg u lations and directives with which NI complies, as well as other environmental informat...
Page 23 - Where to Go for Support
© National Instruments Corp. 23 NI 9476 Operating Instructions and Specifications Where to Go for Support The National Instr u ments Web site is yo u r complete reso u rce for technical s u pport. At ni.com/ s upport yo u have access to everything from tro u bleshooting and application development s...
